GitLab

The summary and background mode use the same set of MDPs now.
So, remove duplicate list.

BUG=730783

Change-Id: I3568d797d5bab3d36df658feb22df28d8ea786a4
Reviewed-on: https://chromium-review.googlesource.com/961554
Commit-Queue: Siddhartha S <ssid@chromium.org>
Reviewed-by: Hector Dearman <hjd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543553}